Thèse de doctorat : Université de Fribourg, 2009 ; Nr. 1640.
Gaussian linear information arises in many real-world models of the natural and social sciences. The Gaussian distribution has turned out to appropriately represent uncertainty in many linear models. The main goal of this thesis is to describe and to compare different algebras of Gaussian linear information: Corresponding elements and operations in the various algebras are revealed and the...
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Thèse de doctorat : Università della Svizzera italiana, 2013 ; 2013INFO005.
Many solutions to problems in machine learning and artificial intelligence involve solving a combinatorial optimization problem over discrete variables whose functional dependence is conveniently represented by a graph. This thesis addresses three types of these combinatorial optimization problems, namely, the maximum a posteriori inference in discrete probabilistic graphical models, the...
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Thèse de doctorat : Università della Svizzera italiana, 2015 ; 2015ECO007.
The interaction of capital and risk is of primary interest in the corporate governance of banks as it links operational profitability and strategic risk management. Senior executives understand that their organization's monitoring system strongly affects the behaviour of managers and employees. Typical instruments used by senior executives to focus on strategy are balanced scorecards with...
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Thèse de doctorat : Université de Fribourg, 2013.
Die vorliegende kumulative Dissertation handelt von Alterspolitik in Schweizer Gemeinden, im spezifischen von deren Akteure, Funktionsweisen, Planungsvorhaben und politische Prozesse. Im Kontext der demographischen Alterung werden Fragen, um die sozialen und wirtschaftlichen Konsequenzen einer alternden Gesellschaft und der politischen Handhabung betroffener Themen, aktuell. In dieser...
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Thèse de doctorat : Université de Fribourg, 2010.
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Thèse de doctorat : Université de Fribourg, 2003 ; no 1417.
Deep landslides (> 10 m) are generally characterized by phases of acceleration alternating with periods of lull, but most often lack real stabilization. Due to the continuous movement, it is difcult to evaluate the evolution of the activity. Therefore, a new methodology has been developed in order to precisely identify the sub-recent (20th century) and present evolution of deep landslide...
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Thèse de doctorat : Université de Fribourg, 2001 ; no 1334.
Many neurons and axons are eliminated during the development of the nervous system. These cells and their connections are thus overproduced, and the organism has to destroy the surplus in order to function correctly. A major mechanism responsible for this elimination appears to be competition between cells for a substance necessary for their survival. To examine this hypothesis, the present work...
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Thèse de doctorat : Università della Svizzera italiana, 2017 ; 2017INFO004.
Different coordinate systems allow to uniquely determine the position of a geometric element in space. In this dissertation, we consider a coordinate system that lets us determine the position of a two-dimensional point in the plane with respect to an arbitrary simple polygon. Coordinates of this system are called generalized barycentric coordinates in 2D and are widely used in computer...
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Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018INFO008.
Task granularity, i.e., the amount of work performed by parallel tasks, is a key performance attribute of parallel applications. On the one hand, fine-grained tasks (i.e., small tasks carrying out few computations) may introduce considerable parallelization overheads. On the other hand, coarse-grained tasks (i.e., large tasks performing substantial computations) may not fully utilize the...
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Thèse de doctorat : Université de Fribourg, 2015.
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